Grover Cleveland was the president in 1887
The Governor's Office of Indian Affairs has the responsibility of HELPING THE TRIBES AND THE STATE OF WASHINGTON WORK TOGETHER.
The principal role of the Indian affair office is to improve the relationship between the state and the recognized indian tribes. The office serves as a liaison officer between the Indian tribes and the state.
1 is probably your best bet since your talking about unit 1 or period 1 which was focuses on irrigation